1283856 has 40 divisors (see below), whose sum is σ = 3791424. Its totient is φ = 366720.

The previous prime is 1283839. The next prime is 1283873. The reversal of 1283856 is 6583821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1283839) and next prime (1283873).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1575 + ... + 2246.

2^1283856 is an apocalyptic number.

1283856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1283856 is an abundant number, since it is smaller than the sum of its proper divisors (2507568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1283856 is a wasteful number, since it uses less digits than its factorization.

1283856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3839 (or 3833 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 1283856 is about 1133.0736957498. The cubic root of 1283856 is about 108.6856244709.

The spelling of 1283856 in words is "one million, two hundred eighty-three thousand, eight hundred fifty-six".